August 20, 2014
If you hate biking near beautiful scenery, challenging climbs with rewarding downhills, maintained hard-packed singletracks, crossing thin bridges over small ravines, well-maintained over logs, and 2-3 ft drops this place isn't for you. I rode 7 miles here for the first time today while passing through town and was pleasantly surprised. There was plenty I didn't explore but hope to soon. I was shocked how well groomed the trail was (besides the lack of markings on the other side of the dam) and there was a lot of man-made bridges (many of them very long) and other obstacles that are perfect for the intermediate rider.
Set your GPS to "Lyndell Rd, Upper Uwchlan, PA" and you'll be right outside the park (you'll just have to follow signs into the park). NOTE: This is not the Marsh Creek Park off Park Road in Downingtown (it is the same reservoir but you'll be biking by the dam). When you enter the parking lot you'll see bathrooms on your left (behind those there is apparently some easier doubletracks (according to comments below)) and a parking lot on your right. If you go to the end of the parking lot you'll see the entrance for the trail (which starts as the white trail but once you cross the dam there is little marking the trails and it will require some exploring).